Growing up as close as siblings, Keisuke and Makura have a rift that leads Makura to storm off in anger. Concerned for her safety, Keisuke ventures out to search for her, ultimately finding her in their cherished sunflower field. As they reflect on their past, a sudden call to Makura's mother takes a chilling turn when she urges Keisuke to rush Makura to the hospital. To Keisuke's astonishment, he witnesses Makura levitating before him, a startling revelation that changes everything.